I just create a Git repo for Guile-Avahi's source code (imported from Arch), and I'd like to create a second repo (e.g., under `.../guile-avahi/website.git') to host the source of the web page. How can I do it?

I noticed that a couple of projects (e.g., WeeChat, TSP) have Git repositories in subdirectories. That's exactly what I want. :-)